Lower grille portion of a front bumper



FIG. 1 is a front left elevated perspective view thereof a lower grille portion of a front bumper according to the present invention.

FIG. 2 is a front left perspective view thereof.

FIG. 3 is a rear right elevated perspective view thereof.

FIG. 4 is a rear right perspective view thereof.

FIG. 5 is a front view thereof.

FIG. 6 is a rear view thereof.

FIG. 7 is a left side view thereof.

FIG. 8 is a right side view thereof.

FIG. 9 is a top view thereof.

FIG. 10 is a bottom view thereof; and,

FIG. 11 is another front view of the lower grille portion of a front bumper shown in FIGS. 1-10 , but with the claimed design shown mounted on a vehicle, and the rest of the vehicle shown in de-emphasized and half-tone portions to illustrate environmental structure. These portions form no part of the claimed design. More particularly, in FIG. 11 , the inventive lower grille portion of a front bumper is shown within the outer broken line, and the elements shown outside the outer broken line form no part of the claimed invention, but are instead included to show environmental structure. The outer broken line forms an unclaimed boundary of the design. 

CLAIM The ornamental design for a lower grille portion of a front bumper, as shown and described. 